42-255-37853

PRODUCING Horizontal

L.B. HAILEY UNIT

KARNES County · District 2 · MARATHON OIL EF LLC · EAGLEVILLE (EAGLE FORD-2)

Permits

1

Max Depth

18,000 ft

First Permit

2023-09-12

Latest Activity

2023-09-12

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2024-04-10

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2023-11

Last Production

2026-07

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (12) Elevation 480 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
COOK MOUNTAIN 2,932 ft-2,452 ft
QUEEN CITY 3,939 ft-3,459 ft
REKLAW 4,473 ft-3,993 ft
CARRIZO 4,874 ft-4,394 ft
WILCOX - DISPOSAL (Wilcox)4,930 ft-4,450 ft
ANACACHO 11,528 ft-11,048 ft
AUSTIN CHALK - H2S (Austin Chalk)11,671 ft-11,191 ft
EAGLE FORD - H2S (Eagle Ford)11,830 ft-11,350 ft
EDWARDS - H2S (Edwards)
FRIO - DISPOSAL (Frio)
SLIGO - H2S (Sligo)
YEGUA - DISPOSAL (Yegua)

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
42-255-37854 L.B. HAILEY-BEST FENNER SA · MARATHON OIL EF LLC
0.0 mi
COOK MOUNATAIN 2,932'Queen City 3,939'Reklaw 4,473'Carrizo 4,874'Wilcox 4,930'Austin Chalk 11,658'Eagle Ford 11,811'Yegua Frio Edwards Sligo
42-255-37852 L.B. HAILEY AC · MARATHON OIL EF LLC
0.0 mi
Queen City 3,939'Reklaw 4,473'Carrizo 4,874'Wilcox 4,930'Austin Chalk 11,674'Frio Yegua Sligo Edwards Eagle Ford
42-255-37856 L.B. HAILEY-DAVILA-ST. GER SA · MARATHON OIL EF LLC
0.0 mi
Cook Mountain 2,932'Queen City 3,939'Reklaw 4,473'Carrizo 4,874'Wilcox 4,930'Anacacho 11,510'Austin Chalk 11,657'Eagle Ford 11,803'Yegua Edwards Sligo Frio
42-255-37855 L.B.HAILEY-DAVILA-BAILEY SA · MARATHON OIL EF LLC
0.0 mi
Cook Mountain 2,932'Queen City 3,939'Reklaw 4,473'Carrizo 4,874'Wilcox 4,930'Anacacho 11,529'Austin Chalk 11,679'Eagle Ford 11,831'Yegua Frio Sligo Edwards
42-255-34892 DAVILA-GRAHAM UNIT AC · MARATHON OIL EF LLC
0.7 mi
Yegua 1,592'Queen City 3,866'Reklaw 4,433'Carrizo 4,788'Wilcox 6,099'Austin Chalk 11,698'Sligo Eagle Ford Frio Edwards
42-255-34891 DAVILA-GRAHAM UNIT · MARATHON OIL EF LLC
0.7 mi
Yegua 1,592'Queen City 3,866'Reklaw 4,433'Carrizo 4,788'Wilcox 6,099'Austin Chalk 11,700'Eagle Ford 11,829'Eagle Ford Reklaw Austin Chalk Carrizo Sligo +5 more
42-255-34890 DAVILA-GRAHAM UNIT · MARATHON OIL EF LLC
0.7 mi
Yegua 1,592'Queen City 3,866'Reklaw 4,433'Carrizo 4,788'Wilcox 6,099'Austin Chalk 11,701'Eagle Ford 11,835'Sligo Frio Edwards
42-255-37149 L.B. HAILEY-MORGAN SA · MARATHON OIL EF LLC
1.2 mi
Queen City 3,932'Reklaw 4,404'Carrizo 5,032'Carrizo 5,035'Wilcox 5,077'Austin Chalk 11,935'Austin Chalk 11,940'Eagle Ford 12,061'Eagle Ford 12,067'Frio Yegua Sligo +1 more

Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).

Perforations (1)

IntervalType
11,954–17,213 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"6,043 ft1,480 sx
5.5"17,213 ft2,955 sx

Permit History (1)

Applications (1)

#893435 A MARATHON OIL EF LLC
received 2023-09-05

Records & Logs

2 completion filings on record · 1 with log images at RRC.

W-2/G-1 2024-08-12
W-2/G-1 2024-01-16 log on file

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

Lat 28.796878
Lon -98.007317

Well Details

Well Number
5H
Max Depth
18,000 ft
Drill Type
Horizontal
County
KARNES
District
2
Completed
2024-04-10

Operator

Location
HOUSTON
P-5 Status
Active (filed 2025-09-26)
Cum Oil (all leases)
409,189,156 bbl
Cum Gas (all leases)
1,029,735,602 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
3,173